What is the test for an appellate court to overturn a finding of guilty on the basis of conflicting circumstantial evidence?

Where the circumstantial evidence favorable to the verdict meets this test, an appellate court will not "search the record for conflicting circumstantial evidence in order to take the case away from the jury on a theory that the proof gives equal support to inconsistent and uncertain inferences." Tennant v. Peoria & P. U. Ry. Co., 321 U.S. 29, 35, 64 S.Ct. 409, 412, 88 L.Ed. 520.

A considerable part of the evidence reviewed above concerned the acts of individual appellants and of their agents or employees, and the extrajudicial declarations of such agents or employees. In evaluating evidence of this kind, it must be kept in mind that evidence of such acts and extrajudicial declarations are not to be considered as against other alleged members, unless there is independent evidence establishing, prima facie, that such others were members of the conspiracy. Glasser v. United States, 315 U.S. 60, 74-75, 62 S.Ct. 457, 86 L.Ed. 680.²⁴